set(RX26T_REVISIONS "typea" "typeb" "typec")
if (NOT DEFINED BOARD_REVISION)
  set(BOARD_REVISION "RX26T_REVISIONS")
else()
  if (NOT BOARD_REVISION IN_LIST RX26T_REVISIONS)
    message(FATAL_ERROR "${BOARD_REVISION} is not a valid revision for mcb_rx26t. Accepted revisions: ${RX26T_REVISIONS}")
  endif()
endif()
